(1alpha,2alpha,13alpha,14alpha)-1,2-Epoxy-1,2,14,19-tetrahydro-12,13-dihydroxy-20-norcrotalanan-11,15-dione 1,2-Epoxy-1,2,14,19-tetrahydro-12,13-dihydroxy-20-norcrotalanan-11,15-dione (1alpha,2alpha,13alpha,14alpha)- 20-Norcrotalanan-11,15-dione, 1,2-epoxy-1,2,14,19-tetrahydro-12,13-dihydroxy-, (1alpha,2alpha,13alpha,14alpha)- 26625-83-2